A Case of Pelvic Schwannoma Presenting Prominent Eggshell-Like Calcification

Takaaki Nakashima,Mitsutoshi Miyasaka,Daisuke Tsurumaru,Akihiro Nishie,Hiroshi Honda,Yusuke Nishimuta

doi:10.1155/2013/825078

Abstract

Pelvic schwannoma typically forms a large, well-circumscribed mass in the retroperitoneum or presacral area and frequently undergoes cystic degeneration. It appears as a well-demarcated round or oval mass, often showing prominent cystic degeneration and calcification. Characteristics of these calcifications are punctate, mottled, or curvilinear and are seen along the walls of the mass. Herein, we describe a case of schwannoma presenting a huge pelvic mass with unique eggshell-like calcification.

Highlights

Schwannomas are benign neurogenic tumors originating in Schwann cells of the nerve sheath
Pelvic or retroperitoneal schwannomas commonly locate in the presacral region or lower retroperitoneum at the pelvic brim [2]
Typical schwannomas are composed of intermixed Antoni A and Antoni B components [3]

Summary

A Case of Pelvic Schwannoma Presenting Prominent Eggshell-Like Calcification

Pelvic schwannoma typically forms a large, well-circumscribed mass in the retroperitoneum or presacral area and frequently undergoes cystic degeneration. It appears as a well-demarcated round or oval mass, often showing prominent cystic degeneration and calcification. Characteristics of these calcifications are punctate, mottled, or curvilinear and are seen along the walls of the mass. We describe a case of schwannoma presenting a huge pelvic mass with unique eggshell-like calcification

Introduction

Case Presentation

Discussion